City vs city
Avon vs Old Greenwich, CT
Old Greenwich currently scores 1 points higher overall than Avon, with the largest gap in flood.
Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.
Hazard breakdown
Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality uses an ingested EPA AirNow snapshot and may not reflect current conditions; other factors describe baseline exposure. The overall score blends different hazards and is not a probability of damage. Read the scoring methodology and sources.
Overall
Avon: 36/100 · Old Greenwich: 37/100
Old Greenwich is 1 points higher.
Flood
Avon: 67/100 · Old Greenwich: 0/100
Avon is 67 points higher.
Avon: FEMA NFHL flood zones: 6 features intersect this tile.
Old Greenwich: FEMA NFHL flood zones: 0 features intersect this tile.
Wind
Avon: 23/100 · Old Greenwich: 25/100
Old Greenwich is 2 points higher.
Avon: Wind exposure derived from ingested design wind / climatology tiles.
Old Greenwich: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Avon: 12/100 · Old Greenwich: 18/100
Old Greenwich is 6 points higher.
Avon: Lightning exposure derived from ingested climatology tiles.
Old Greenwich: Lightning exposure derived from ingested climatology tiles.
Tornado
Avon: 0/100 · Old Greenwich: 0/100
No gap.
Avon: Tornado risk derived from NOAA SPC historical reports.
Old Greenwich: Tornado risk derived from NOAA SPC historical reports.
Hail
Avon: 21/100 · Old Greenwich: 10/100
Avon is 11 points higher.
Avon: Hail risk derived from NOAA SPC historical reports.
Old Greenwich: Hail risk derived from NOAA SPC historical reports.
Storm surge
Avon: Unavailable · Old Greenwich: 99/100
A score difference cannot be calculated without both sources.
Avon: Storm surge model is not available for this location yet.
Old Greenwich: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Avon: 64/100 · Old Greenwich: 64/100
No gap.
Avon: Wildfire exposure derived from ingested fire potential tiles.
Old Greenwich: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Avon: 28/100 · Old Greenwich: 42/100
Old Greenwich is 14 points higher.
Avon: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Old Greenwich: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Compare with another city